We divide 212345 by 12
The aim is to understand the frequency of 12 in 212345.

Advancing to step 1:
2 divided by 12 is 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 12

Let's proceed to step 2:
12 goes into 21 1 times with a remainder of 9.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 12 from 21 and we're left with 9.
Include the next digit (2) from the dividend after 9, then repeat: 92 / 12

Moving on to step 3:
92 divided by 12 is 7 with a remainder of 8.
The number 7 becomes the next digit in our result. 
Result so far: 17.0
The remainder is 8 after subtracting 84 from 92.
Include the next digit (3) from the dividend after 8, then repeat: 83 / 12

Advancing to step 4:
The number 12 fits into 83 6 times, leaving a remainder of 11.
Write down 6 as next digit of the result. 
Result so far: 176.0
If we subtract 72 from 83, we get 11.
Include the next digit (4) from the dividend after 11, then repeat: 114 / 12

Step 5:
114 divided by 12 is 9 with a remainder of 6.
Record the quotient 9 as the next digit in the result. 
Result so far: 1769.0
If we subtract 108 from 114, we get 6.
Append the next digit (5) from the dividend to 6 and continue with: 65 / 12

Step 6:
12 can be fit into 65 5 times, resulting in a remainder of 5.
The next digit of our result is 5. 
Result so far: 17695.0
The remainder is 5 after subtracting 60 from 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 7:
12 goes into 50 4 times with a remainder of 2.
Use 4 as the next digit of our solution. 
Result so far: 17695.4
Subtract 48 from 50 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 8:
If we divide 20 by 12, we get 1 and a remainder of 8.
Use 1 as the next digit of our solution. 
Result so far: 17695.41
Subtract 12 from 20 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 9:
When dividing 80 by 12, we get 6 with a remainder of 8.
Write down 6 as next digit of the result. 
Result so far: 17695.416
The remainder is 8 after subtracting 72 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 10:
80 divided by 12 is 6 with a remainder of 8.
Put 6 as the next digit of the answer. 
Result so far: 17695.4166
Subtract 72 from 80 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The quotient of the division is 17695.4166, and the remainder is 8e-05.